当齿沟啮合面旋转至壳体排气口时，较高压力的油气混合气体排出机体。
When the mesh surface rotation teeth to shell vent, under high pressure gas mixture in the oil and gas discharge.
目测检查排气口以确保当压力为零时，排气处于全开位置。
Visually inspect vent to ensure that vent goes to full open position when the pressure is at zero.
排气口密封设计得可以安全地承受全部钢瓶压力。
The outlet seals are designed to safely contain full cylinder pressure.
根据回流压力的变化规律，采取异型排气口、预进气结构等措施减小回流冲击。
The change of back-flow pressure, deformed exhaust hole, pre-inflow structure and so on can be adopted to reduce back-flow impact.
进气口开大排气口关小使输出压力增加，因此执行机构推杆向下移动使调节阀阀芯开启或关闭。
Large intake vents open so that the output pressure off small increase, thus putting downward movement so that implementing agencies spool valve to open or close.
转子继续旋转，被隔离气体逐渐被压缩，压力增高，当压力超过排气口的压力时，则气体被排出泵外。
The rotor continues to rotate, be quarantined the gas slowly be compressed, pressure, when pressure is more than vent pressure, the gas is expelled the pump.
转子继续旋转，被隔离气体逐渐被压缩，压力增高，当压力超过排气口的压力时，则气体被排出泵外。
The rotor continues to rotate, be quarantined the gas slowly be compressed, pressure, when pressure is more than vent pressure, the gas is expelled the pump.
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